100909640920 has 64 divisors (see below), whose sum is σ = 247731229440. Its totient is φ = 36687907200.

The previous prime is 100909640903. The next prime is 100909640921. The reversal of 100909640920 is 29046909001.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100909640921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2958765 + ... + 2992675.

It is an arithmetic number, because the mean of its divisors is an integer number (3870800460).

Almost surely, 2^100909640920 is an apocalyptic number.

100909640920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100909640920 is an abundant number, since it is smaller than the sum of its proper divisors (146821588520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100909640920 is a wasteful number, since it uses less digits than its factorization.

100909640920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40696 (or 40692 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 100909640920 in words is "one hundred billion, nine hundred nine million, six hundred forty thousand, nine hundred twenty".